the first section of new polyurethane pavement in china was implemented in the yanwei reconstruction and expansion project of shandong expressway
on november 21, the first domestic new polyurethane pavement structure test section was successfully implemented in the yanwei reconstruction and expansion project of shandong hi-speed group, marking a new breakthrough in polyurethane pavement research technology and laying the foundation for the yanwei reconstruction and expansion project. at the end of the year, the main line…

